Several types of structural heart intervention (SHI) use information from multiple imaging modalities to complete an interventional task. For example, in transcatheter aortic valve replacement (TAVR), placement and deployment of a bioprosthetic aortic valve in the aorta is primarily guided by x-ray fluoroscopy (XRF), and echocardiography provides visualization of cardiac anatomy and blood flow. However, simultaneous interpretation of independent x-ray and echo displays remains a challenge for the interventionalist. The purpose of this work was to develop a novel echo/x-ray co-registration solution in which volumetric transthoracic echo (TTE) is transformed to the x-ray coordinate system by tracking the three-dimensional (3D) pose of a probe fiducial attachment from its appearance in two-dimensional (2D) x-ray images.

中文翻译：

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使用附加基准装置进行基于 X 射线的表面回波探头跟踪的技术和临床研究

几种类型的结构性心脏介入 (SHI) 使用来自多种成像模式的信息来完成介入任务。例如，在经导管主动脉瓣置换术 (TAVR) 中，生物人工主动脉瓣在主动脉中的放置和部署主要由 X 射线透视 (XRF) 引导，超声心动图提供心脏解剖和血流的可视化。然而，独立的 X 射线和回波显示的同时解释对于介入医师来说仍然是一个挑战。这项工作的目的是开发一种新颖的回波/X 射线配准解决方案，其中通过跟踪探头基准的三维 (3D) 姿势将体积经胸回波 (TTE) 转换为 X 射线坐标系从它在二维 (2D) X 射线图像中的外观来看。